Loose-leaf ring book



Jan. 6, 1493.1. 1, SCHADE 1,787,957

LOOSE LEAF RING BOOK Filed NOV. 29, 1929 Invenzor QfO/?? 15b/Zad@ Patented Jan. 6, 1931 "UNITED STATES JoHN SCHADE, or 'HCLYCKE MASSACHUSETTS, ASSIGNQE To NATIONAL BLANK Boox COMPANY, or HoLYoHE, MASSACHUSETTS, `A CORPORATION-or MASSACHUSETTS LooSE-LEAE RING Book Application lied November 29, 1929. Serial o. 410,392.

This invention relates to loose leaf books of the kind known as ring books, which comprisefa spring. plate with a pair of prongcarrying leaveswh'ose inner edges are pivo ted together and whose outer edges are confined within the lower down-turned lateral edges of said plate, these prongs being complementary parts lof a ring, that yis to say, when the prongs are closed they forni a ring.

The construction and operation of ring books, such as described briefly above are well known, and the parts will hereinafter be merely. referred to 4and properly designated.

In ring books ofy this description, it has been Common toemploy what are known as boosters that are pivotallyconnected at the ends of the loose leaf vstructure and vare Voperated to throw the prong carrying leaves upwardlyto open the prongs.

The present invention relates solely to ring books employing boosters, and has "for its object to lock the prong-carrying leaves after they have been thrown downwardly to close the prongs, this lockingfbeing effected by a 'part carried or operated by the booster itself. `The locking of the prong-carrying leaves by the inward 'swing 'of the'booster when the leaves are thrown downwardly to Close the prongs,`andl the release of these leavesfrom the locking means when the booster is thrown outwardly to cause the opening ofthe prongs, are believedto be broadly new, and therefore it is immaterial whether the booster itself carries the locking means or whether the latter is aseparate element that is' operated by the booster.

In theaccompanying drawings which-form a part of this application.

Figure 1 is an end view of a ring binder equipped with a preferred form of booster, the prongs being in closed Condition.

Figure 2is a brokensection at the line 2 2 kofFigure 1.`

`Figure is also a brokensection taken at the line 2-2 of Figure l, but showing the position of parts when the booster has been thrown outwardly to release theAprong-car- .rying leaves from the lock and preparatory to the final operation of the booster yto throw 5 thetleaves upwardly to open the prongs.

`Figure 4: is likewise a section on; the line 2 -2 of Figure 1, but showing the position of parts when the booster has been finally operated to throw the leaves upwardly so that the prongs will lbe opened.

Figure 5 isla broken bottom view of one end ofthe ring'binder; i Figureso and 7 are sections at the line 6 6 ofFigure showingthe positionof the parts as-illustrated at Figures 2 and 4 respectively, and

Figures z8 vand 9 are sections similar 'to Figures 2 and'.3, but showing a modified form oftheinvention. i j Similar numerals of referenoefdenote like parts in the several figures of the drawing. lis a plate made of spring-metal having its outerlateral edges turned downwardly andv inwardly to form pockets 2, 3 are elonlgated toggleleaves whose inner'edges are pivoted togetherand whose outer edges are confined within said pockets,an d 4 are archshaped-prongs ,that lare carried-by these leaves and that' pro ject upwardly above said plate so astovform, whenclosed, a ring as shown at Figure 't 't Since both ends of the 'ring binder are eX- actly alike yonly .one end will be described hereinafter.. 5 is an end cap' Securedin anysuitable manner to the end of the binder land serving to exclude idirtor other foreign' matter, this cap having formed therewith at its lower edge spaced hinge eyes 6.

`7 generallyidenotes the booster which comprises "an upwardly extending portion 8 suitably shaped for Convenient manipulation, and a lower inwardly extending tongue-like portion 9.-whieh underlies the leaves 3 at their. inner hinged edges, and integra-l with the booster and flanking the outer portion of this tongue 9 aresp-aced hinge eyes 10 'which are -aline'd with the eyes 6 ofthe end cap anda pintlell'inserted through the eyes, so that it'will be readily understood that the `booster is hinged atits lowerpouter Aend to the endeap with an intermediate or tonguelikey portion, y9 lextending inwardly beneath the leaves 3.

nererringrofriguresl, 2,'3, 4,5, e and?,

Y' the end cap 5 is provided'with an opening 12 at vor about the middle portion of its outer wall, and the upward part 8 of the booster has a lug'18 that 'is lanced therefrom and is bent inwardly so that when said booster is thrown inwardly this lug 13 will pass through the opening' 12 and immediately overlie the leaves 3, when the latter have been thrown downwardlygto'close the prongs,as is shown at Figures 2 and 6, and; it will" beclear that when the parts are in the position shown at these figures the prongs cannotbel'opened manually since` the leavesv will be heldby means 'of this lug 13. Y l 7 Itwillbe noticed by reference to Figures v2 Yand 6 thatft-he. tongue Q -is vslightly.,spaced from .the'gileavesafter the latterA have been thrown'wlowrifbyA therclo'sing of the prongs, and when thev booster' fis operated to throw the leaves upwardly this tongue must travel throughout this spacefbefore itcomesin op.- erative contact -with Vthe leaves, and Y during 4this travel ytheplug 13.,"will have been withdrawn ,from its. position above the leaves, as shown at Figure 3, so that there will be nothing. to .obstruct the further operation of the .booster to open the prongs and the parts can then readily assume the positions Vshown at Figures eand'l', Y y.

Itk willithereforebe clear that'in the construction just described the boostermay be integrallyvvconstructed so as to provide both the, means for operating against the leaves to open the. prongs and ythe means for locking the leaves so that they cannot be operated afterthe rprongs have been closed.

But it is aqvery simple matter to provide a separate locking lug or dog that is not carriedby the booster but is operated by it so asvto produce the results above described, and referring particularly to Figures 8 and 9 this construction will now. be described.

14 is a trip dog pivoted to the top of the loose leaf structure,as at 15 to the innertop wall of the platev 1, and depending through an opening 16 in the toggle leaves'v 3, half of this .o Jenin@ a nearing in the single leaf shown b b C at these Figures 8 and 9.`

Formed on the dog isa shoulder 17 Y which overlaps the leaves 3 when they are in their normal position with the yprongs closed,`so A v e leaves and subsequently operating them to open the prongs.

that the manual opening of the later is pre- Y vented by theabutment of the leaves against said shoulder, as clearly shown at Figure 8.'

AThe lower edge of this dog is rounded or tacted bysaid Y'tcmgue andfthe doglthereby y swung to Vrelease the leavesffrom the Ashoulder L 17 as shown at Figure 9, and the continued .K'swingfotthe booster will operate the vtmgue` against theleaves to open the prongs, the dog 'in bothv instances this means is actuated by the swinging movements of the booster, and therefore the construction just described Vis fully within the scope of theinvention.

What is claimed u 1. In a loose -leafstructure, comprisingl'a spring plate, a pair vof prong-carrying .leaves hingedlymconnected along theirl inner edges and confined at 'their' outer edges within Vsaidplateya booster'pivoted at an end of saidstr'ucture, vand means alctuatedbyjthe ilnwardf'andgoutward movements offsaid' booster for respectivelylocking said leaves with the prongs closedand releasing said leaves and operating them to open. said prongs?, 'Y i i 2. In `a-loose leaf structure, comprising a spring plate, afpairfof prong-carryingleaves whose 'inner edges arehingedly .connected and whose outerwedgesv arecon'fined'within said',kplate,'meansfor operatingv said leaves to openthe prongs, and means actuated by the iirstfnamed means forloclring/said leaves e jwith-theprongs closed;

loose V4leafstructure', comprising .a spring plate, a pair of prong-carrying leaves rwhose inner edges are. hingedly 'connected and whose outeredges are confined within said plate, and means pivoted to an end of said' structure and r`.operable to lock said leaves .with thefprongs closedandto unlock the Vleaves.preparatcary to the .final operation of said means foi` opening said prongs.A

f 4. A loose leaf structure, Vcompri singda spring plate, a pair of prong-carrying leaves ,whose inner edgesfare hingedly. connected `and whose outer edges-are.coninedlwithin said plate, and means pivoted to anV eli/1d` of said 'structure for locking said, leave/s with the prongs closed andwforv unlocking the Q 5 In 1a loose leaf structure, emprising 4 a Srrm'e' plate, a .pair Qf Prongfcaryingleav'es vbeveled as shown at 18and isVv immediately f Whose inner edges* are hi-ngedly' 'connected and whose outer edges are confined within extends *inwardlyA below said leaves andin lspaced,relatitm thereto. when `the prongs.Y are `closed,alug lanced from said portioneand withfwhen the prongs areelosed, said booster capable of being swung outwardly to primarily withdraw said lug from locking engagement with said leaves before said tongue has come into engagement with the leaves,

` and tol subsequently. force the tongue against theL leaves to open the prongs.

6. In a loose leafv structure, comprising a spring plate, a pair of prong-carrying leaves whose Vinner edges are hingedly Connected and whose outer edges are confined within saidplate, an end cap at one end of said structure having an opening 1n its outer wall and .spaced hinge eyes at kits bottom y edge, abooster having an upstanding portion and a tongue at the bottom that extends inwardly beneath said leaves in spacedrela-v tion thereto when they. have been operated yto close the prongs, said booster having hinge eyes at the bottom intermediate said portion and tongue Which eyes are alined with the eyes on said cap and a pintle insertedthrough the alined eyes,said portion having a lug that extends inwardly throughisaid' opening and overhangs said leaves in substantial abutment therewith after they have been operated to close the prongs, the initial outward swing of the booster serving to with r i vdraw said lug from looking engagement with said leaves, the tongue meanwhile being moved into operative engagement with the leaves, and the final outwardswing of the p booster causing said tonguge to force the leaves upwardly to open the prongs.

` 7. In a loose leaf structure, comprising'a j spring plate, a pair of prong-oarryingleaves Whose inner edges are hingedly connected and whose outer edges are confinedv within said plate, a member pivoted at an endof by said member and aot against said leaves below and above them respectively.

In testimony whereof `I affix my signature hereto.

JOHN SCHADE. 

